| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | May 27, 2025 | May 22, 2025 | 001-12609 |
| 4 | Open Document | Open Filing | FORM 4 | May 21, 2024 | May 17, 2024 | 001-12609 |
| 4 | Open Document | Open Filing | FORM 4 | May 23, 2023 | May 19, 2023 | 001-12609 |
| 4 | Open Document | Open Filing | FORM 4 | May 23, 2022 | May 19, 2022 | 001-12609 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 24, 2021 | May 20, 2021 | 001-12609 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 1, 2021 | Feb 25, 2021 | 001-12609 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 19, 2020 | Nov 17, 2020 | 001-12609 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 5, 2020 | Aug 3, 2020 | 001-12609 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 6, 2020 | Jul 1, 2020 | 001-12609 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 21, 2019 | Oct 11, 2019 | 001-02348 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Oct 21, 2019 | Oct 11, 2019 | 001-12609 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Dec 10, 2018 | Dec 10, 2018 | 000-30684 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 21, 2017 | Nov 17, 2017 | 000-30684 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 22, 2016 | Nov 18, 2016 | 000-30684 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 12, 2015 | Nov 10, 2015 | 000-30684 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 18, 2014 | Nov 14, 2014 | 000-30684 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 16, 2014 | Jan 14, 2014 | 000-30684 |